GR3015292T3 - Liquid crystalline polyesters for optical data storage. - Google Patents
Liquid crystalline polyesters for optical data storage.Info
- Publication number
- GR3015292T3 GR3015292T3 GR950400470T GR950400470T GR3015292T3 GR 3015292 T3 GR3015292 T3 GR 3015292T3 GR 950400470 T GR950400470 T GR 950400470T GR 950400470 T GR950400470 T GR 950400470T GR 3015292 T3 GR3015292 T3 GR 3015292T3
- Authority
- GR
- Greece
- Prior art keywords
- data storage
- optical data
- liquid crystalline
- crystalline polyesters
- polyesters
- Prior art date
Links
- 238000013500 data storage Methods 0.000 title abstract 4
- 230000003287 optical effect Effects 0.000 title abstract 4
- 229920000728 polyester Polymers 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 title abstract 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 2
- 125000002723 alicyclic group Chemical group 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
- C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6826—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
- C08G63/6854—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6856—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
- C09K19/3833—Polymers with mesogenic groups in the side chain
- C09K19/3838—Polyesters; Polyester derivatives
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/25—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing liquid crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Polyesters Or Polycarbonates (AREA)
- Liquid Crystal Substances (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90302182 | 1990-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GR3015292T3 true GR3015292T3 (en) | 1995-06-30 |
Family
ID=8205310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GR950400470T GR3015292T3 (en) | 1990-03-01 | 1995-03-03 | Liquid crystalline polyesters for optical data storage. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5262081A (da) |
| EP (1) | EP0444740B1 (da) |
| JP (1) | JPH05202174A (da) |
| AT (1) | ATE115174T1 (da) |
| CA (1) | CA2037369A1 (da) |
| DE (1) | DE69105550T2 (da) |
| DK (1) | DK0444740T3 (da) |
| ES (1) | ES2066329T3 (da) |
| GR (1) | GR3015292T3 (da) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0550105A3 (en) * | 1991-12-30 | 1993-11-18 | Akzo Nv | Liquid-crystalline polyurethanes, compositions of said liquid-crystalline polyurethanes, and a device for optical data storage comprising a liquid-crystalline polyurethane |
| US5480749A (en) * | 1994-09-27 | 1996-01-02 | Green; Mark M. | Reversible chiral optical data storage using majority rule of polymer conformation |
| GB9526485D0 (en) * | 1995-12-22 | 1996-02-21 | Secr Defence | Liquid crystal polymers |
| DE59706772D1 (de) * | 1996-05-22 | 2002-05-02 | Bayer Ag | Schnell fotoadressierbare substrate sowie fotoadressierbare seitengruppenpolymere mit hoher induzierbarer doppelbrechung |
| JP4649821B2 (ja) * | 2002-06-07 | 2011-03-16 | 富士ゼロックス株式会社 | ポリエステル、光記録媒体、及び光記録再生装置 |
| JP2004310999A (ja) * | 2003-03-24 | 2004-11-04 | Fuji Xerox Co Ltd | 光記録媒体と光記録媒体の製造方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3431133A1 (de) * | 1984-08-24 | 1986-03-06 | Basf Ag, 6700 Ludwigshafen | Mesogene gruppen enthaltende polymere und deren verwendung |
| DE3603266A1 (de) * | 1986-02-04 | 1987-08-06 | Roehm Gmbh | Vorrichtung zur reversibeln, optischen datenspeicherung (ii) |
| DE3603267A1 (de) * | 1986-02-04 | 1987-08-06 | Roehm Gmbh | Vorrichtung zur reversiblen, optischen datenspeicherung (i) |
| DE3603268A1 (de) * | 1986-02-04 | 1987-09-24 | Roehm Gmbh | Verfahren zur reversiblen, optischen datenspeicherung (iii) |
| DE3622613A1 (de) * | 1986-07-05 | 1988-01-14 | Bayer Ag | Verfahren zur herstellung von polymeren netzwerken mit ueberstrukturen, entsprechende polymere netzwerke und ihre verwendung |
| DE3623395A1 (de) * | 1986-07-11 | 1988-01-21 | Roehm Gmbh | Vorrichtung zur reversiblen, optischen datenspeicherung unter verwendung von polymeren fluessigkristallen |
| EP0258898B1 (en) * | 1986-09-04 | 1992-04-22 | Idemitsu Kosan Company Limited | Liquid-crystalline polymer |
| EP0274128B1 (en) * | 1986-12-29 | 1999-03-31 | Idemitsu Kosan Company Limited | Liquid-crystalline polymer |
| JPH0778218B2 (ja) * | 1987-06-29 | 1995-08-23 | 出光興産株式会社 | 液晶ポリマ−組成物 |
| US5001209A (en) * | 1988-07-04 | 1991-03-19 | Akzo N.V. | Non-linear optical active diols and polyurethanes prepared therefrom |
-
1991
- 1991-02-19 US US07/657,022 patent/US5262081A/en not_active Expired - Fee Related
- 1991-02-20 DK DK91200365.4T patent/DK0444740T3/da active
- 1991-02-20 DE DE69105550T patent/DE69105550T2/de not_active Expired - Fee Related
- 1991-02-20 AT AT91200365T patent/ATE115174T1/de not_active IP Right Cessation
- 1991-02-20 EP EP91200365A patent/EP0444740B1/en not_active Expired - Lifetime
- 1991-02-20 ES ES91200365T patent/ES2066329T3/es not_active Expired - Lifetime
- 1991-02-28 CA CA002037369A patent/CA2037369A1/en not_active Abandoned
- 1991-03-01 JP JP3057609A patent/JPH05202174A/ja active Pending
-
1995
- 1995-03-03 GR GR950400470T patent/GR3015292T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2066329T3 (es) | 1995-03-01 |
| DE69105550T2 (de) | 1995-06-22 |
| EP0444740A1 (en) | 1991-09-04 |
| EP0444740B1 (en) | 1994-12-07 |
| CA2037369A1 (en) | 1991-09-02 |
| ATE115174T1 (de) | 1994-12-15 |
| DE69105550D1 (de) | 1995-01-19 |
| DK0444740T3 (da) | 1995-05-01 |
| US5262081A (en) | 1993-11-16 |
| JPH05202174A (ja) | 1993-08-10 |
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